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M9550831.TXT
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1995-03-25
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Document 0831
DOCN M9550831
TI Heterogeneity of antigen-specific CD4+ T cell clones from a patient with
Schistosomiasis mansoni.
DT 9505
AU Hirayama K; Abrams JS; Quinn JJ; Harn DA; Department of Tropical Public
Health, Harvard School of Public; Health, Boston, MA 02115.
SO Parasite Immunol. 1994 Nov;16(11):561-9. Unique Identifier : AIDSLINE
MED/95166573
AB Two subsets of differentiated murine helper T cells, Th1 and Th2, based
on secretion products in response to antigen have been described (Cher &
Mosmann 1987, Coffman et al. 1988, Lopez et al. 1988, Paliard et al.
1988, Patel et al. 1988, Mosmann & Coffman 1989). To analyse
immunological function of antigen-specific CD4+T cells in human
schistosomiasis, we produced schistosomal egg antigen-specific T cell
clones from a former patient. We identified four different types of CD4+
T cell clones by analysis of cytokine production. Two of the four types
of the clones corresponded to murine Th1 or Th2 subsets; a third type
was of the Th0 subset (Th1 + 2) and a fourth type produced IL-5
dissociated from IL-4. Analysis of the antigen(s) recognized by these T
cell clones showed that all of the clones proliferated in response to
soluble egg antigen(s) (SEA) found within a pl fraction whose pH was
5.2. T cell Western blot analysis of the stimulatory pl fraction
demonstrated that the apparent Mr of the relevant antigens recognized by
the clones were 38 kDa for the Th2 homologue, and 45-55 kDa for the Th1
homologue.
DE Animal Antigens, Protozoan/*IMMUNOLOGY Antigens, Surface/ANALYSIS
Base Sequence Clone Cells Cytokines/BIOSYNTHESIS CD4-Positive
T-Lymphocytes/*IMMUNOLOGY DNA Primers Human In Vitro Mice Molecular
Sequence Data Ovum RNA, Messenger Schistosomiasis/*IMMUNOLOGY
Schistosomiasis mansoni/IMMUNOLOGY Support, Non-U.S. Gov't Th1
Cells/IMMUNOLOGY Th2 Cells/IMMUNOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).